21364460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82171}}^1$

素因数の和:82193

約数の個数: 24

約数和(自身を含む): 48317136

約数和(自身を除く): 26952676

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 82171, 164342, 328684, 410855, 821710, 1068223, 1643420, 2136446, 4272892, 5341115, 10682230, 21364460]

約数ペア:

[(1, 21364460), (2, 10682230), (4, 5341115), (5, 4272892), (10, 2136446), (13, 1643420), (20, 1068223), (26, 821710), (52, 410855), (65, 328684), (130, 164342), (260, 82171)]